 |
| |||
| 环境噪音 | |||
| 背景噪声 | |||
| 环境噪声 | |||
| 外界噪声 | |||
| 周围噪声; 基底噪声; 本底噪声 | |||
| ambient noise: 18 phrases in 9 subjects |
| Aviation | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Information technology | 2 |
| Nautical | 1 |
| Space | 3 |
| Technology | 7 |
| Telecommunications | 1 |
|
| |||
| 环境噪音 | |||
| 背景噪声 | |||
| 环境噪声 | |||
| 外界噪声 | |||
| 周围噪声; 基底噪声; 本底噪声 | |||
| ambient noise: 18 phrases in 9 subjects |
| Aviation | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Information technology | 2 |
| Nautical | 1 |
| Space | 3 |
| Technology | 7 |
| Telecommunications | 1 |